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公开(公告)号：US20240304656A1
公开(公告)日：2024-09-12
申请号：US18666125
申请日：2024-05-16
发明人： Yun-Li LI
CPC分类号： H01L27/156 , H01L33/62
摘要： A micro light-emitting diode display device includes a circuit substrate and a plurality of display pixels. The display pixels are arranged on the circuit substrate and are respectively electrically connected to the circuit substrate. Each display pixel includes a plurality of micro light-emitting elements. In each display pixel, a part of the micro light-emitting elements form at least one series-connection structure, and the micro light-emitting elements of the series-connection structure are within a wavelength range of the same lighting color. The circuit substrate respectively provides a same driving voltage to drive the micro light-emitting elements included in the series-connection structure of each display pixel and the micro light-emitting elements excluded from the series-connection structure.
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公开(公告)号：US12087881B2
公开(公告)日：2024-09-10
申请号：US18455032
申请日：2023-08-24
申请人： GOOGLE LLC
CPC分类号： H01L33/32 , H01L27/156 , H01L33/0075 , H01L33/06
摘要： Methods and devices are presented for transforming a layout of a densely packed grid of micro-LED light emitters to a layout of a square rectilinear pixel grid to achieve compatibility with hardware and software used in imaging and display technologies. In particular, a pattern of regular hexagonal emitter cells for fabrication on a III-nitride substrate can be transformed to a square pixel array of irregular hexagonal trichrome pixels that are readily addressable. Separation between adjacent trichrome pixels, and between their constituent emitters, can be established for overlay tolerance, while maintaining a cell packing density of about 70% and a pixel pitch of about 4.0 μm. Wavelength and quantum efficiency properties are shown to depend on optical current density, which can be determined by the emitter area specified in the grid layout.
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公开(公告)号：US12087805B2
公开(公告)日：2024-09-10
申请号：US17480468
申请日：2021-09-21
发明人： Jin Hyeong Lee , Su Jeong Kim
IPC分类号： H01L27/15 , H01L33/10 , H01L33/38 , H01L33/44 , H01L33/50 , H01L33/54 , H10K59/35 , H10K71/16
CPC分类号： H01L27/156 , H01L33/10 , H01L33/382 , H01L33/44 , H01L33/50 , H01L33/54 , H10K59/351 , H10K71/16
摘要： A display device includes: a substrate including a first light emitting region, a second light emitting region, a third light emitting region, and a light blocking region configured to partition the first to third light emitting regions; a plurality of light emitting elements on the substrate and respectively located in the first light emitting region, the second light emitting region, and the third light emitting region; a planarization layer on the plurality of light emitting elements; a wavelength conversion layer on the planarization layer and including wavelength conversion parts, a light transmitting part, and a color conversion member; and a color filter layer on the wavelength conversion layer and including a color filter, and the wavelength conversion parts are located in each of the first light emitting region and the second light emitting region, the light transmitting part is located in the third light emitting region.
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公开(公告)号：US12087804B2
公开(公告)日：2024-09-10
申请号：US17471836
申请日：2021-09-10
发明人： Chung Hoon Lee
CPC分类号： H01L27/15 , H01L33/382 , H01L33/44 , H01L33/505 , H01L33/58 , H01L33/62 , H01L2933/0016 , H01L2933/0025 , H01L2933/0066
摘要： A light emitting device including a substrate having a first region and a second region, a light emitting stack including vertically stacked semiconductor layers disposed on the first region of the substrate, at least one pillar disposed on the second region of the substrate and laterally spaced apart from the light emitting stack, and at least one electrode extending from the first region to the second region of the substrate and electrically connecting the light emitting stack to the at least one pillar, in which the at least one pillar is disposed on the at least one electrode, respectively.
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公开(公告)号：US12080828B2
公开(公告)日：2024-09-03
申请号：US17538021
申请日：2021-11-30
发明人： Joon Hee Lee
CPC分类号： H01L33/382 , H01L27/156 , H01L33/10 , H01L33/22 , H01L33/32 , H01L33/405 , H01L33/62
摘要： A light-emitting diode includes a first conductive semiconductor layer, an upper insulating layer positioned on the first conductive semiconductor layer, a mesa including an active layer and a second conductive semiconductor layer and positioned under a certain region of the first conductive semiconductor layer, and first and second through-holes through which the first conductive semiconductor layer is exposed. The first through-holes are arranged in a region encompassed by the edge of the mesa. The second through-holes are arranged along the edge of the mesa so that some of the second through-holes are encompassed by the active layer and the second conductive semiconductor layer, respectively.
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公开(公告)号：US12080206B2
公开(公告)日：2024-09-03
申请号：US17700631
申请日：2022-03-22
申请人： Japan Display Inc.
发明人： Akihiro Ogawa
CPC分类号： G09G3/006 , H01L27/156 , H01L33/38 , H01L33/62
摘要： A method for repairing a display device, the display device comprising: a plurality of inorganic light emitters arrayed in a matrix (row-column configuration); and a counter electrode provided in a traveling direction of light emitted from the inorganic light emitters and coupled to the inorganic light emitters, the method comprising steps of: detecting a defective inorganic light emitter serving as one of the inorganic light emitters and having a defect; and removing a target portion of the counter electrode by irradiating the target portion with light while leaving the defective inorganic light emitter unremoved, the target portion including a portion between a portion coupled to the defective inorganic light emitter and a portion coupled to an inorganic light emitter adjacently disposed with the defective inorganic light emitter.
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公开(公告)号：US20240290927A1
公开(公告)日：2024-08-29
申请号：US18572246
申请日：2022-06-30
申请人： BARCO N.V.
CPC分类号： H01L33/62 , H01L27/1214 , H01L27/156 , H01L33/502 , H01L33/507
摘要： A light emitting module for a light emitting display, including a first backplane and a third backplane arranged in a stackup. The first backplane includes a thin film transistor (TFT) layer deposited on a first substrate, the TFT layer further including a plurality of light emitting elements, associated contact pads and conducting tracks. The third backplane is provided on top of the light emitting elements, includes cavities at the locations of the light emitting elements and includes at least a ground layer and a power layer. The upper and lower layers of the third backplane are provided by alternatively the ground layer and the power layer for contacting the light emitting elements.
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公开(公告)号：US20240290922A1
公开(公告)日：2024-08-29
申请号：US18572437
申请日：2022-03-11
发明人： KEIJI SUGI
CPC分类号： H01L33/60 , H01L27/156 , H01L33/20 , H01L33/382
摘要： Reduction of the maximum luminance is suppressed. A semiconductor device according to an embodiment includes a light emitter (105) provided on an upper surface of a substrate, a metal microstructure (108) disposed on a side opposite to the substrate with the light emitter interposed therebetween and spaced apart from the light emitter by a predetermined distance, and a reflector (109) provided on the substrate so as to partition adjacent semiconductor devices.
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39.发明公开公开(公告)号：US20240290820A1
公开(公告)日：2024-08-29
申请号：US18658378
申请日：2024-05-08
发明人： Chung Hoon LEE , Jong Hyeon CHAE
IPC分类号： H01L27/15 , H01L25/065 , H01L25/18
CPC分类号： H01L27/156 , H01L25/0655 , H01L25/18
摘要： A light-emitting diode (LED) unit for a display including a plurality of pixels each including a first light emitting cell, a second light emitting cell, and a third light emitting cell, each of the first, second, and third light emitting cells including a first conductivity type semiconductor layer, an active layer, and a second conductivity type semiconductor layer, a first wavelength converter configured to convert a wavelength of light emitted from the first light emitting cell, a second wavelength converter configured to convert a wavelength of light emitted from the second light emitting cell, in which the first, second, and third light emitting cells of each pixel share the first conductivity type semiconductor layer.
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公开(公告)号：US20240290818A1
公开(公告)日：2024-08-29
申请号：US18583169
申请日：2024-02-21
申请人： LG DISPLAY CO., LTD.
发明人： Gwangmin YEO , WonJun CHOI , SeongHwan JU , Sangmin PARK
CPC分类号： H01L27/156 , H01L33/60
摘要： A display device includes a substrate including an active area in which the plurality of sub pixels is disposed and a non-active area which encloses the active area; a plurality of pad electrodes disposed on the substrate in the non-active area to transmit a signal to the plurality of sub pixels and each including a first conductive layer, a second conductive layer on the first conductive layer, and a third conductive layer on the second conductive layer; a first passivation layer extending from the active area to cover an end of the first conductive layer; and a second passivation layer extending from the active area to cover an end of the second conductive layer.
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